Question: When did Lee de Forest divorce from Nora Stanton Blatch Barney?
Paraphrase: What year did Lee de Forest end his marriage with Nora Stanton Blatch Barney?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q354863 p:P26 ?s . ?s ps:P26 wd:Q17676 . ?s pq:P582 ?value}